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91.
A. P. Kuznetsov K. L. Gubskii E. D. Protsenko I. P. Shapovalov A. S. Savjolov 《Technical Physics Letters》2012,38(12):1066-1069
We have developed a new method for measuring the gaskinetic pressure of corpuscular flows in pulsed plasma that employs a probe in the form of an acoustic rod incorporated in the optical scheme of a laser interferometer. This method has been used to study the temporal dynamics of the pressure of corpuscular flows emerging from a micropinch discharge of the low-inductance vacuum spark type. Due to a large dynamic range (~105), the proposed method can be implemented in a large variety of plasma setups with a broad range of parameters. 相似文献
92.
N.N. Ponomarev-Stepnoy A.N. Protsenko A.Ya. Stolyarevsky Yu.F. Chernilin 《International Journal of Hydrogen Energy》1983,8(11-12)
Solution of the current problem of essential substitution of atomic energy for oil and gas consumption requires development and introduction of the designs for atomic energy utilization not only in the electrical energy industry but also in other fields of oil and gas consumption, such as heat generation for industrial and district purposes, metallurgy, chemistry, and transport. Introduction of atomic energy to these fields Si the most important problem to be solved [1]. Investigations on the high-temperature helium-cooled reactors showed that these reactors can possibly be used for this purpose. When the temperature potential of 900–1000°C is reached for these reactors [2] the atomic energy will be efficiently used in the main power-intensive technological processes currently consuming a large fraction of the oil and natural gas [3]. 相似文献
93.
V. O. Hordienko V. S. Protsenko S. C. Kwon J.-Y. Lee F. I. Danilov 《Materials Science》2011,46(5):647-652
We propose an electrolyte based on chromium sulfate (1 mole/liter Cr(III)) and containing both formic acid and carbamide (urea).
This electrolyte enables one to get Cr coatings with a thickness of several micrometers. It is shown that the current yield
and deposition rate increase as the current density and pH value increase and temperature decreases. We select the optimal
conditions of electrolysis under which bright high-quality chromium deposits are obtained. In this case, the deposition rate
of the metal varies from 0.5 to 1.5 μm/min. It is shown that the optimal concentration of both formic acid and carbamide is
equal to 0.5 mole/liter. The necessity of using certain surface-active substances to prevent the formation of pitting on the
surface of the deposit is demonstrated. Moreover, it is discovered that the microhardness of Cr deposits attains its highest
values (950–980kg/mm2) for currents with densities of 30–35 A⋅dm−2 and decreases as the pH value and temperature increase. Electrolysis is realized by using titanium–manganese-dioxide anodes
and, hence, it is not necessary to separate the cathodic and anodic spaces. 相似文献
94.
A. I. Sukhinov A. E. Chistyakov E. A. Protsenko 《Mathematical Models and Computer Simulations》2014,6(4):351-363
A nonstationary spatial two-dimensional model of sediment transport in the coastal zone of water reservoirs is considered, taking into account the following physical parameters and processes: the porosity of soil, the critical shear stress at which sediment begins moving, turbulent exchange, the dynamically changing geometry and function of the bottom elevation level, as well as wind currents and friction on the bottom. The hydrodynamic spatial two-dimensional model of sediment transport in the coastal zone of the reservoirs is also considered. For the proposed mathematical models their discretization has been fulfilled. Based on the developed algorithms a complex of programs has been built and the results of numerical experiments are presented. 相似文献
95.
96.
Surface and grain boundary wetting and penetration of pure Fe and a martensitic steel by Pb and Pb-Bi eutectic alloys were studied by the sessile drop and dispensed drop techniques at different temperatures (400–900°C) and times (up to 30 h). By using two different atmospheres—high vacuum and a He-H2 gas—and different heat treatments, wetting was studied for both oxidized and deoxidized solid substrates. 相似文献
97.
Hachair X. Pedaci F. Caboche E. Barland S. Giudici M. Tredicce J.R. Prati F. Tissoni G. Kheradmand R. Lugiato L.A. Protsenko I. Brambilla M. 《IEEE journal of selected topics in quantum electronics》2006,12(3):339-351
We experimentally demonstrate the existence and the control of cavity solitons in externally driven vertical-cavity semiconductor lasers above threshold. A model including material polarization dynamics is used to predict and confirm the experimental findings. 相似文献
98.
VS Markhasin LB Katsnelson LV Nikitina YL Protsenko 《Canadian Metallurgical Quarterly》1997,16(2):101-137
Earlier we developed a mathematical model of the cardiac muscle that allowed for inactivation through the effects of cooperativity of contractile proteins. In the present work we used the model to analyze the mechanical function of an inhomogeneous myocardium. To simulate the latter we chose, as the simplest sytstem, a duplex in which muscles with different mechanical properties were connected in series and in parallel. Numerical experiments showed that the basic effect due to the inhomogeneity consists in the non-additivity of the mechanical characteristics of the muscle, e.g., of the relationship between end-systolic length and end-systolic force (Les - Pes). As a rule, non-additivity consists in a negative inotropic effect. The analysis showed that the cause of non-additivity is redistribution of loads between muscles (in a parallel duplex), redistribution of lengths (in a serial duplex), changes in the rate of contraction of each muscle compared to contraction that when working separately, shifts in time to Les. Also, the model predicts that additional inactivation of contractile proteins in a muscle within a duplex against isolation is the substantial mechanism of enhanced non-additivity. Among the factors of inhomogeneity studied the basic determinants are difference in amplitudes between isometric tensions developed by each muscle in isolation and the asynchronism in the development of these tensions. 相似文献
99.
D. V. Onishchenko V. P. Reva V. G. Kuryavyi A. E. Protsenko V. V. Petrov 《Coke and Chemistry》2013,56(2):70-72
Carbon nanotubes may be produced by the mechanical activation of amorphous carbon derived from the wastes of Katerina SV corn. After 27-h mechanical activation, the yield of nanotubes is 42 wt %. 相似文献
100.
D. V. Onishchenko V. P. Reva V. G. Kuryavyi A. E. Protsenko V. V. Petrov 《Coke and Chemistry》2013,56(3):107-109
The sorption capacity of multiwalled nanotubes synthesized in the mechanical activation of amorphous carbon from corn wastes is investigated. The sorptional effectiveness of the nanotubes depends on their storage time. The use of carbon from corn waste as chelators is considered. 相似文献